256400008

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{19507}}^1$

素因数の和:19597

約数の個数: 32

約数和(自身を含む): 505647360

約数和(自身を除く): 249247352

約数列:

[1, 2, 4, 8, 31, 53, 62, 106, 124, 212, 248, 424, 1643, 3286, 6572, 13144, 19507, 39014, 78028, 156056, 604717, 1033871, 1209434, 2067742, 2418868, 4135484, 4837736, 8270968, 32050001, 64100002, 128200004, 256400008]

約数ペア:

[(1, 256400008), (2, 128200004), (4, 64100002), (8, 32050001), (31, 8270968), (53, 4837736), (62, 4135484), (106, 2418868), (124, 2067742), (212, 1209434), (248, 1033871), (424, 604717), (1643, 156056), (3286, 78028), (6572, 39014), (13144, 19507)]